'tis a most silly question for a black-and-white answer.
There IS no black and white answer!!
If the chances are that the MATZ is closed, and there's good visibility, why not fly through it keeping a very good lookout.
If the cloudbase allows it, climbing to 3000 ft solves the problem altogether.
If you were only planning on flying through the stub anyway, and there's good visibility and no high ground or congested areas, why not descend to under 1000 ft.
And if there are good ground features and you can do so easily, why not divert around.
BLOODY STUPID QUESTION!!!! Whoever set that as an exam question should be made to ask for MATZ clearances and fly through, round, under, and over the MATZ for twenty-four hours non-stop!!!!
DX Wombat,
I was very fortunate in having someone who was prepared to support me and have the matter investigated by the CAA.
You don't need anyone to support you; you can email the CAA and get these sort of things investigated yourself. I've done it. I initially failed my CPL(H) Principles of Flight exam by two marks. When I started re-revising, I remembered a question that I was sure had had four wrong answers. I asked a more experienced pilot, who agreed with me. I emailed the CAA, and got back an email saying that as many of the standard texts agreed with me (but not the almost unheard of book which they were using) they were giving me the two extra marks....AND A PASS!!!!! It was great; it would have been my only resit, and I had a free summer instead.
(Before anyone comments, yes, I know I probably should know more than 75% worth of P of F, and I probably do now, but that's not the point)